Window-sash channel



E. EHEINTZ ET 'AL WINDOW SASH CHANNEL June 16, 1925.

Filed June 28, 1924 Cil Patented June 16, 1925.

UNITED STATES- ERNEST E. I-IEINTZ AND THOMAS P. ARCHER, OF DETROIT, -MICmG-AN, ASSIGNO'RS TO TERNSTEDT MANUFACTURING COMPANY, OF DETROIT, MICHIGAN, A CORPORA- TION OF MICHIGAN.

WINDOW-,Sasa CHANNEL.

To all whom t 'ma-y concern.

Be it known that we, ERNEsT E. HEINTZ and THOMAS P.. ARCHER, citizens ofthe United States, residing at Detroit, in the county of Vayne andState of Michigan, have invented certain new and-useful Improvements in Window-Sash Channels, .of

tinuous lengths at relatively great vspeed on machines similar toA tube forming machines. vThe bottom of the glass-retaining channel at the same time forms the top of the guide channel for the lifting element.v The strip being rolled in this way, the parts are always automatically furnished of the proper size and properly located with respect to each fied\form of construction.

Fig. l is a detail perspective view of the sash bar shown in Fig. 2.

a designates the window provided with a lower sash bar b, which is rolled in'continuous lengths on a machine with suitable rolls and mandrels, or suitable rolls, dies andl "mandrels This rolling operation is performed on strip stock of suitable width, continuously fed through the rolls and formed into the shape shown in the draw- Application led June 28, 1924. Serial No. 723,062.

Thismakes a single, inte- .A gral structure wli1chcan be rolled 1n conings. to provideV an upwardly facing channel and a laterally 'facing channel -below the upwardly facing channel. The upwardly fac.- ing channel is preferably provided with an inverted V groove in the bottom of the chan-l nel designated g. The metal stock after forming the upwardly presenting channel is folded `down along the outside wall of this channel and formed in a relatively long L. This provides an inwardly presenting guide channel c. The roll f, which has a periphery convex in cross section, is rotatably secured o n the lever arme of the lever type regulator. This lever arm e is secured to the toothed quadrant and the quadrant may be' raised or. lowered in a familiar way in the art relating to window regulators.

This particular channel with the inverted V groove at the bottom of the upwardly presenting channel is especially adapted for use with this roll type of Window lifting element secured on a lever. Such a channel must needs run nearly the width of the window and furtherrnore,by` simply tilting the window sash, the channel may be disenga ed from the side of the roll, but only by tilting may it be so disengaged for in the form shown in Fig. 2, it will bev seen that the V groove locks over the roller, preventing removal of the same by side draft. It will therefore be apparent that when the Agarnish moulding (not shown) in the window is taken out so that the window can be tilted, the window may .be easily disengaged from the roll. However, when the garnish moulding is in place, the shape of this channel se# curely locks the channel and the roll together. In fact, when the roll is assembled in the channel, the channel is slightly sprung as shown Yexaggeratedlyin Fig. 2, so as to take up all looseness and rattle. i

.What we claim is:l

1. A sash lower channel bar, comprisingja single strip of stock fashioned into an up wardly presenting channel to take the glass and having a depending L-'like portion doubled back on one side wall of the upwardly The stripstock is yshaped by these rolls bled back on one Wall of the upwardly presenting channel and forming a laterally presenting channel lfor the purpose specified.

ln testimony whereof we have affixed our signatures.

ERNEST E. HENTZ. THOMAS P. ARCHER. 

